Messages in this thread |  | | Subject | Re: e2fs performance as function of block size | Date | Wed, 22 Nov 2000 00:27:47 +0000 (GMT) | From | Alan Cox <> |
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> It's as though the disk drivers are optimized for this case (1024). I
The disk drivers are not, and they normally see merged runs of blocks so they will see big chunks rather than 1K then 1K then 1K etc.
> behavior, but there is clearly some optimization relative to this size > inherent in the design of Linux -- and it may be a pure accident. This > person may be mixing and matching block sizes in the buffer cache, which > would satisfy your explanation.
I see higher performance with 4K block sizes. I should see higher latency too but have never been able to measure it. Maybe it depends on the file system. It certainly depends on the nature of requests
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